PHYSCI 5 Chapter Notes - Chapter 1: Respiratory Tract, Pernicious Anemia, Centenarian

• School: UCLA
• Department: Physiological Science
• Course: PHYSCI 5
• Professor: Esdin Joseph

Document Summary

Chapter 1 - how to become a centenarian. Centenarian - someone who is 100+ yrs old. Average lifespan for men - 73, for women it is slightly higher. In 2. 5 million yrs humans have evolved, but the last 60 years obesity has become a big issue. Obesit(cid:344) as a (cid:700)disease(cid:701) raises a(cid:342)are(cid:269)ess, it is (cid:269)ot the i(cid:269)flicted"s fault. It (cid:268)a(cid:344) be a (cid:700)(cid:268)arker of disease(cid:701) that i(cid:269)dicates other diseases the i(cid:269)flicted (cid:268)a(cid:344) have. Infectious diseases - diseases associated w/ microorganisms (bacteria/viruses), we know what causes it, has a clear beginning and end (ppl get sick and then they get well) Cause: poor sanitation (consuming contaminated water and food), health care was primitive, disease spread exponentially. Pneumonia and influenza, tuberculosis, diarrhea and enteritis, diseases of the heart, senility and vascular lesion, nephritis, cancer, diphtheria (upper respiratory tract) Antibiotics - substance that fights bacterial infection. Insulin - hormone that regulates sugar, associated w/ diabetes.